Analysis of Traffic Accidents Leading to Death Using Tripod Beta Method in Yazd, Iran

Mehrzad Ebrahemzadih
1. Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran. 2. Department of Occupational Health, Faculty of Health, Kurdistan University of Medical Sciences, Sanandaj, Iran

Omid Giahi
1. Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran. 2. Department of Occupational Health, Faculty of Health, Kurdistan University of Medical Sciences, Sanandaj, Iran

Farshad Foroginasab
Master of Safety engineering, Shahid Behshti University of Medical Sciences, Iran.

Abstract

This study tried to find the original causes of road accidents to prevent their occurrence. This was a descriptive-analytic retrospective study which assessed 1,000 cases of road accidents leading to death during 2003-2013 using the Tripod Beta method. The latent problems, the contributing preconditions, and corrective strategies for the prevention of occurrence of these accidents were determined. The findings of this study revealed that violation of traffic safety rules, especially deliberate violations and risk-takings decreased with increasing age. In comparative status of the superficial problems, illegal and impermissible speed of drivers accounted for 19.10%, in comparative status of preconditions, violation of safety rules accounted for 32.6% and finally, in comparative status of the latent problems, the presence of financial constraints and time pressure in designing and manufacturing of the cars, and quality of city streets, roads, accounted for 20.1%, of the leading causes of occurrence of accidents in this study.